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L. T. MATHEWS POSITION INDICATOR FOR TYPING MACHINES Original Filed March 0, 1925 tares UNITE LOUIS T. MATHEwsor HOUSTON, exas, as'srenon, By DIRECT ANDMESNE ASSIGN- MENTS, To THE LET-TA POIN-TA MANUFACTURING ooiuranxor HOUSTON,

TEXAS, A CORPORATION OF'DELAWARE, 7

POSITION INDICATOR FOR TYJPING MACHINES.

Application filed March so, 1925, Serial No. 19,240. Renewed October 17. 1927.

Myinvention relates to an attachment for oopyholders for use on typewriters, type-setting machines and the like.

There are various copy dnow in use for holding the copy which is to be reproduced. The notes to be copledar e usually typewritten material, although it is occasionally a matter ofprinted articles from newspapers and'the like which isto be retyped. The devicesnow in use employ a fixed horizontal marker relative to which the copy is gradually-raisedto disclose'one line after another of the printed matter which is to be copied.

An object of the invention is to provide a laterally moving pointer, adjustable to move in unison with the typingof the copy, so as to continually indicate the exact letter or other character which is being typed.

Another object is to provide an indicator to mark the character being typed which will be actuated automatically by the manipulation of the keys of the typing machine. It is also desired to provide means ofadjustment 2 of the operating mechanism which will adopt the device for use with different sizes of printed copy matter.

Referring to the drawing herewith, Fig. 1 is a front elevational view of a device employing; my invention. Fig. 2 is a broken detail in front elevation, showing a slightly different embodiment of the marker; Fig. 3 is. a transverse sectional view of the reel employed with my marker, and Fig. 4 is a side view. of the adjusting spools which may:

beemployed. Like numerals of reference are employed to designate like parts in all the views. H I

In the drawing, I have shown my attachment as applied to a typewriter indicated as 1, having on the rearward side thereof an uprightcopy holder 2. While I have indicated the device as applied to a typewriter, it is to be understood that the same may be employed upon linotypes and other similar type-setting machines, as well as upon any ordinary make of typewriter.

The typewriter in the drawing is somewhat diagrammatically shown, there being a keyboard 3 and a carriage 4: which is moved to the left, as seen in Fig. 1, by the manipuholding deviceslation of the keyboard, as is well understood in'the operationof typewriters.

The copy holder shown infthe drawing comprises an upright plate or board 5 which furnishes a back or support for the copy which is to be reproduced by the typewriter. The sheet of copy is heldin position upon the plate by means of a-spring pressed rod 6. The line which is being copied is marked by means of a straight edgeor rule 7 *ATENT w mounted upon a supporting bracket orstand 8. This rule is stationary and the stand or back plate is moved vertically relative to the marking ruleby meansof mechanism not shown, but which is well understoodin the art and com arises no art of m invention.

Thev invention consists in the employment of a pointer movable along the straightedge which marks the line being copied to indicate the exact letter which-is being typed at any time, This will make it unnecessary/for the typlst to watch his printed matter, and w it will only be necessary for the typist to watch the progress ofth e pointer along the copy. l

In the drawing the pointer is indicated at 9. It comprises an upwardly extending point attached to a supporting tape or cord 10 which is adapted to be reeled up onto a spool within the housingll. In Fig. 3 the interior of the housing llis shown. There is acentral roller '12 mounted upon a central shaft 13 andhaving a spring 14 to hold the tape in'retracted position. This type of' spring operated spool or reel is well known; The tape or cord 10 is secured at 15 to the up on thespool by the operationeoffthe spring. f i

The housing 11 forthe reel is mounted upon a bracket 16 secured to the frame 17 of the straight edge. The bracket is forked at surface of the roller 12 and will be wound its outer end to form a bearingto receive the shaft 13. The bracket may be adjustably clamped to the frame 17 by any desired means.

The end of the cord or tape 10 adjacent the pointer is secured to a cord 18 which serves to move the tape 10 andthe marker through the operation of the type machine. This is performed by extending the cord 18 over a roller, or pulley 19 mounted upon a bracket 20 so as to hold the line parallel with the straight edge. The bracket is secured at its upper end. 2l to the rod 17 of the frame, and is extended downwardly below the pulley 19 and supports thereon a reel 22 1nounted rotatably upon a shaft 23 secured in the bracket. As shown in Fig. 4, the bracket 20 maybe formed of a strap ofiron or other metal extending downwardly forming a loop at its lower end and recurved to be secured to the upper armof the bracket at the pivotal point of the pulley 19. The reelshaft 23 is thus supported at both ends for greater strength. Referringalso to Fig. l it will be across the. top of the typewriter and secured zit-28 ,to the arm 29 mounted .uponthe end'of the carriage 4. Thus when the carriage is moved laterally toward the left in the draw ing, the cord 26 will rotate the drum 22 and reel-up the cord 18 upon the selected drum to move the pointer 9 at the rate desired.

ment the letter or Thus the pointer will be moved from the left to the right following the copy'so that th pointer will indicate at'each' mocharaoter which is being-copied. It will be obvious that the p, ed equallywell by means of a weight such as amount of movement at each imprint made by the type-machine may be adjusted so'that the pointer will accurately indicate at all times the point at which the operator is copying. The-tension of the spring 14 within thehousing will-tend to draw the pointer resiliently back toward the housing, and for this -reas on,lif any character is retyped for any reason, the marker will move backward- 13 so as to remain always at a point indicating the character being typed.

'The spring'within the" housing exerts a constanttension upon the pointer, but it is to beunderstood'that this tension may be exert is disclosed inFig. 2. In this modification, the tape or cord 10 ispassed over a roller 30 mounted in a bracket-31'upon theframe, and a'weig'ht 32 is secured on the linebelow the pulley 3,0,.v Theweight will thus exert a constant tension on the line 10 to move the pointer in the same manner as in the previous m odiment. H

The operation of this device has already been set forth. The operation of the keyboard of the typewriter will move the car riage 4: in the usual manner so as to operate notime need'be lost'in finding the place. By

use drums different sizes upon the reel 22, the progress of the pomter along the edge of the marker may be adjusted to adapt it for use in copying ordinary printed matter, or for previously ,atypewritten matter so that the device may be employed in the copying of any type of printed .characters. The further objects and advantages of the invention will be apparent 'to those skilled in the art.

What I claim as new and desire to protect by Letters Patent is:

1. In a device ofthe character described, including a' typewriter, a copy holder adjacent thereto, anda line marker relative are which the copy holder is movable, the combination of abracketpositioned at one side of said copyholder, a series of drumsofdi fferent diameters mounted rotatablyon said bracket, a reel at :the opposite side of said copyholder, a tape on said reel connected at one end to one of-said drums, a pointer on said tape,.and a line connected with the carriage of said typewriter and passing OYGICOIIQ of said drums, and adapted to move said tape in the manner described.

2. In a device of the character described, a typewriter having a carriage thereon, a

frame adj acent saidtypewriten'a copyholder adjustable vertically on said frame, a stationary line marker on said frameandadapted to bear. against the front of said holder, a flexible :line, means to hold said line resiliently against said .copyholder, a pointer on said line,.a reel to'which said lineislconnected, a series of drums of various diameters on" said reel, and a cord connected with saidcarriage one of said drums. 3. In adeivice of'the character described, the combination with a typewriter having a moving carriage thereon, a frame adjacent said typewriter, a copyholder movable up and down on said frame, and-aline marker on said frame at the forward side of said copyholder, ofa bracket onsaid frame adjacent one end of said carriage, a reel with drums of different sizes on said bracket,"a flexible line-held resiliently at the side of said frame opposite said bracketan'd connected with said reel, a pointer on said 'l-ine, and means connected with said carriage and said reel to move said line and said pointer at the desired rate of travel along said marker.

-l. in a device of the character described,

the combination with a typewriter, a frame holder at various rates of movement, as deadjacent thereto, a copyholder movable on sired. said frame, a stationary line marker on said In testimony whereof I hereunto aflix my 1 frame, a flexible line held resiliently at one signature this 26th day of March A. D.

5 end of said marker, a pointer thereon, and 1925. V

means operated through the carriage of said o typewriter to draw said marker across said LOUIS T. MATHEWS. 

